Sash-lock.



"""I if @wijz/Z225 G. E. HENNIES.

SASH LOCK.

APPLICATION FILED JUNE 12, 190B.

9 1 4,4 1 O Patented Mar. 9, 1909.

CHARLES EDWARD l-IENNIES, OF ATLANTA, GEORGIA.

Application led June 12, 1908.

To all whom it may concern:

Be it known that l, Gi-rAnLns EDWARD l'lnNNrEs, a citizen of the UnitedStates, residing at Atlanta, in the county of' Fulton and State ofGeorgia, have invented a new and useful Sash-Lock, of which thefollowing is a specification.

This invention relates to sash locks and has for its object to provide acomparatively simple and in xpensive device of this character especiallydesigned for attachment to a window sash or similar closure and by meansof which the window may be locked in open or partially open position,thereby to permit ventilation.

A further object of the invention is to provide a sash lock including acasing having a plurality of clamping members slidably mounted thereinand provided with terminal teeth or corrugations adapted to engage awindow frame for supporting the sash in adjusted position.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andeiiiciency as Well as to reduce the cost of manufacture.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims.

ln the accompanying drawings forming a part of this specification:Figure 1 is a perspective view of a sash lock constructed in accordancewith my invention showing the same in position' on a window sash. Fig. 2is a longitudinal sectional view of the same. Fig. 3 is an end view.Fig. 4 is a plan view of the nut engaging plate.. Fig. 5 is an end viewof Fig. 4. Fig. 6 is a detail sectional view illustrating a modifiedform of the invention.

Similar numerals of reference indicate corresponding parts in all of the'figures of the drawings.

The improved sash lock forming the subject matter of the presentinvention is principally designed for attachment to window sashes andsimilar closures and by way of illustration is shown in position on awindow oi" the ordinary construction in which 5 designates the sash and6 the window frame.

The device consists of an elongated casing 7 having an interior chamberopening Specification of Letters atent.

Patented March 9, 1909.

Serial No. l138,184.

through one side of the casing and provided with laterally extendingears or lugs 8 having )eriorations formed therein for the reception ofscrews or similar fastening devices -9 by means of which the casing maybe i'asto the partition 10 and adapted to bite into a window frame andthus lock the sash in open or partially open position to permitventilation.

The clamping members 13 are preferably rectangular in shape, as shown,and are each provided with a reduced shank 15 the exterior walls ofwhich are threaded and extended through correspondingly threadedopenings 16 in the rear l'ace of the casing Jfor engagement with wingnuts 17. The nuts 17 are each provided with laterally extending iianges18 spaced apart by an intermediate collar or sleeve 19 one of whichnormally bears against the adjacent exterior wall ol' the casing and isheld in contact therewith by a plate 20. The plate 20 is interposedbetween the nuts 17 and is secured to the casing by a screw or similarfastening device 21, there being a collar 22 formed on the lower face ofthe plate for spacing the latter from the casing a distancey equal tothe width of the ianges 18. rlhe opposite ends of the plate 20 areprovided with segmental recesses 23 to accommodate the collars 19 sothat when the wing nuts 17 are adjusted to operate the clamping members,said nuts will be locked against longitudinal movement.

The wing nuts 17 may be adjusted by manipulating the same with thefingers but it is preferred to employ a suitable operating tool (notshown).

ln using the device the sash is adjusted in the frame to open orpartially open position after which either wing nut is rotated thusforcing the serrated face of the adjacent clamping member in contactwith the window frame and securely locking the latter in adjustedpositionso as to permit ventilation of the interior of the room. Il thesash is very heavy or loosely mounted in the frame both of said clampingmembers are preierably actuated thereby to present an extendedclampingface for engagement with the window frame.

In Fig. 6 of the drawings there is illustrated a modified form of theinvention in which the clamping member 13 is rovided with a socket 14for the rece tion o cap or contact piece l5', the latter eing preferablyformed of rubber or other yieldable material so as to prevent injury tothe window frame,

The devices may be made in different sizes and shapes and may benickeled, japanned or otherwise coated to give the same a neatattractive appearance.

It will of course be understood that the sash locks may be used oneither the right or left hand side of the sash and employed for lockingeither the upper or lower sash of the window.

Having thus described the invention what is claimed is:

1. A sash lock comprising a casing, a clamping member slidably mountedin the casing and provided with a threaded shank movable longitudinallywith said clamping member, a nut engaging the threads on the shank, andmeans engaging the nut for preventing longitudinal movement o'l' thesame when the clamping member is operated.

2. A sash lock comprising a casing, clamping members slidably mounted inthe casing and provided with threaded shanks, nuts engaging the threadson the Shanks, and means interposed between the nuts and bearing againstthe latter for preventing longitudinal movement of said nuts when theclampin members are operated.

3. A sashllock comprising a casing having an interior chamber, apartition extending transversely of the chamber and forming independentcompartments, clamping members slidably mounted in said compartments androvided with threaded Shanks extending t rough the adjacent wall of thecasing, nuts engaging the threads on the Shanks,

and means interposed between the nuts for locking the latter againstlongitudinal movement when the clamping members are operated.

4. A sash lock comprising a casing having independent compartments7clamping members slidably mounted in said compartments and each havingone face thereof corrugated, threaded shanks extending laterally fromthe clamping members and projecting through the adjacent wall of thecasing, nuts engaging the'threads on the shanks and provided with spacedflanges, and a plate interposed between the nuts and engaging theflanges for locking said nuts against longitudinal movement when theclamping members are operated. l

5. A sash lock comprising a casing having attaching ears and providedwith a partition defining a plurality of compartments, blocks slidablymounted in the compartments and each provided with a serrated clampingface, the serrations gradually decreasing in height from the center ofthe casing toward the opposite ends thereof, threaded Shanks extendinglaterally from the blocks and projecting through the adjacent wall` ofthe casing, nuts engaging the threads on the shanks and provided withspaced flanges, one fiange of each nut being arranged to bear againstthe adjacent wall of the casing, a stationary plate interposed betweenthe nuts and provided with oppositely disposed seg-V mental recesses toaccommodate said nuts, and a spacing collar extending laterally from oneside of the plate and of approximately the same width as the flanges onthe wing nuts.

In testimony that l claim the foregoing as my own, l have hereto affixedmy signature in the resence of two witnesses.

C ARLES EDWARD HENNIES.

Witnesses:

H. F. Coox, LEON S. HOLLEY.

